Fault Indication Diagnosis (Rev 6/98)
117
28 (SH) (*) (**) Pre-trip Abort
Possible cause: defrost damper stuck closed.
Test procedure: free defrost damper.
Possible cause: On-Off switch turned OFF during amps
check.
Test procedure: leave switch on during amps check.
Possible Cause: Fuse blown.
Test Procedure: Check fuses.
29 (CH) (*) Damper Circuit
Possible cause: faulty damper door solenoid.
Test procedure: test solenoid.
Possible cause: faulty in 29 circuit.
Test procedure: test 29 circuit.
30 (CH) (SH) (*) Damper Stuck Closed
Possible cause: object stuck in damper door.
Test procedure: remove object.
31 (SH) (*) Oil Pressure Switch
Possible cause: faulty oil pressure switch.
Test procedure: replace oil pressure switch.
32 (CH) (SH) (*) Refrigeration Capacity Low
Possible cause: low on refrigerant.
Test procedure: check refrigerant level.
Possible cause: defective three-way valve.
Test procedure: check operation of three-way valve.
Possible cause: defective pilot solenoid.
Test procedure: check pilot solenoid operation.
Possible cause: defective K1 relay.
Test procedure: test K1 relay.
Possible cause: compressor inefficient.
Test procedure: check compressor capacity.
Possible cause: partial obstruction in low side of refrigera-
tion system.
Test procedure: locate and remove obstruction.
Possible cause: Iced or dirty evaporator.
Test procedure: inspect/defrost evaporator coil.
Possible cause: faulty expansion valve.
Test procedure: test expansion valve operation.
Possible cause: plugged filter drier.
Test procedure: check filter drier.
Possible cause: defective microprocessor.
Test procedure: replace microprocessor.
33 (CH) (*) Check Engine RPM
Possible cause: engine running too slow.
Test procedure: check engine rpm.
Summary of Contents for Super II SR+
Page 4: ......
Page 10: ...ii ...
Page 14: ...4 ...
Page 22: ...Unit Description Rev 6 98 12 Front View AEA1350 ...
Page 23: ...Unit Description Rev 6 98 13 Right Side Door Open AEA1351 ...
Page 24: ...Unit Description Rev 6 98 14 Left Side Doors Open AEA1352 ...
Page 26: ...Operating Instructions Rev 6 98 16 Control Box Cover AEA1354 ...
Page 34: ...24 ...
Page 42: ...Electronic Controls Rev 6 98 32 SOFTWARE REVISION 04XX ALARMS AEA1358 ...
Page 82: ...72 ...
Page 90: ...80 ...
Page 116: ...106 ...
Page 120: ...110 ...
Page 130: ...120 ...
Page 141: ...131 Schematic Diagram SBIII SII RMNII 30 SR MPIV ...
Page 142: ...132 Wiring Diagram SII SBIII RMN30 SR MPIV Page 1 of 4 ...
Page 143: ...133 Wiring Diagram SII SBIII RMN30 SR MPIV Page 2 of 4 ...
Page 144: ...134 Wiring Diagram SII SBIII RMN30 SR MPIV Page 3 of 4 ...
Page 145: ...135 Wiring Diagram SII SBIII RMN30 SR MPIV page 4 of 4 ...